L1 Network Engineer (Support)
Taiwan
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Job Description
L1 Network Engineer (Support)
Others, Taipei

Job Summary

To write, test, and deploy high-quality, maintainable code in accordance with time| quality and cost standards.

Key Responsibilities

  • Monitor and troubleshoot LAN and wireless networks, including strong knowledge of DHCP, DNS, and core networking protocols.
  • Proactively monitor, diagnose, and escalate issues impacting the network infrastructure in production environments.
  • Utilize network monitoring and ITSM tools such as Remedy for incident tracking and resolution.
  • Coordinate with telecom carriers to troubleshoot WAN connectivity issues, manage escalations, and ensure resolution within SLAs.
  • Lead troubleshooting efforts for telco-related issues and drive them to closure.
  • Troubleshoot and escalate advanced network infrastructure issues as required.
  • Diagnose and resolve issues related to IPsec, NAT, PAT, and GRE tunnels.

Skill Requirements

 

  • Strong verbal and written communication skills.
  • Solid understanding of enterprise networking technologies including routing, switching, wireless, and SD‑WAN.
  • Advanced expertise in routing protocols such as RIP, EIGRP, OSPF, IS‑IS, and BGP.
  • Working knowledge of QoS and multicast technologies.
  • Experience resolving complex network problems in enterprise environments.
  • Hands-on troubleshooting experience with LAN technologies including VTP and STP.
  • Familiarity with gateway redundancy protocols such as HSRP, VRRP, and GLBP.
  • In‑depth understanding of Cisco routers and switches (e.g., 2800, 2900, 3750, 3900, ASR, ISR).
  • Good understanding of GRE, IPsec, site‑to‑site VPN, and DMVPN technologies.
  • Knowledge of VSS architecture.
  • Experience troubleshooting wireless LAN environments, WLCs, and performing IOS upgrades on routers and switches.
  • Understanding and troubleshooting of MPLS and Frame Relay technologies.
  • Hands-on experience with network monitoring and ITSM platforms such as Remedy.
  • Practical experience with circuit testing.
  • Hardware knowledge of platforms such as Cisco 7600, 6500 and 3750, etc.

 

Education & Experience

  • Bachelor’s or Master’s degree in IT, Computer Science, Electronics, or related engineering fields.
  • CCNA Routing & Switching certification (preferrable).
  • 3–6 years of technical experience in network engineering or support roles.
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Information at a Glance

Why HCLTech?

At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first.

HCLTech is a global technology company, home to more than 226,300 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending December 2025 totaled $14.5 billion.
23 Benefits At HCLTech, we believe in empowering our employees with comprehensive benefits that support their professional growth and enhance their well-being. When you sign up for a career with us, you gain access to: https://rmkcdn.successfactors.com/147eb21f/a701dca9-f32d-4fc9-9447-6.svg Industry-benchmarked compensation https://rmkcdn.successfactors.com/147eb21f/b0c54381-ddcc-4a33-9b35-9.svg Best-in-class healthcare benefits https://rmkcdn.successfactors.com/147eb21f/b73027be-7aae-4d36-a090-4.svg Personal time off https://rmkcdn.successfactors.com/147eb21f/d5b4fdfd-2e99-4e26-9878-9.svg Maternity and paternity benefits https://rmkcdn.successfactors.com/147eb21f/3d42b0fc-4652-435a-9ece-c.svg Access to skills / higher education programs/resources https://rmkcdn.successfactors.com/147eb21f/aeddeaf2-9e25-4584-ad11-d.svg Discounts on products and services via Benefit Box https://rmkcdn.successfactors.com/147eb21f/a9609a3b-2700-4b3c-9d90-a.svg Participate in CSR programs and live life with a purpose https://rmkcdn.successfactors.com/147eb21f/c6e33851-710f-4634-bd69-f.svg Opportunities to grow and advance your career Note: The benefits listed above vary depending on the nature of your employment and the country where you work. Some benefits may be available in some countries but not in all.